Y13 Population Size Flashcards
(4 cards)
1
Q
What is carrying capacity?”
A
The max population an environment can have
2
Q
What shape is the population size to time graph and what are the 4 stages of the graph?
A
A sigmoid shape that increases rapidly then plateaus
Slow growth at start as organism adjusts to environment
Rapid growth
Slow growth as competition increases
Plateau as death rate= birth rate
3
Q
What is a niche?
A
A role that an organism plays in an ecosystem
4
Q
What are the 3 effectors of population size?
A
Competition
Predators
Disease
